Horatio allen



RALLEN; i MAGHINE FOR INSBRTING STOP GUKS.

No. 3,348. Patented Nov.. 21,1843.

num

UNITED STATESA PATENT OFFICE.

HORATIO ALLEN, OF NEW YORK, N. Y.

MACHINE FOR TAPPINGAND INSEEWING,Sl'PV-COCIKS-lN PIPES UNDER HYDROSTATIC PRESSURE.

Specification forming part of Le'lteisln'tent No. 3,34 8, daledNovemlwrtZl, 1843.

To all whom t may concern/b Be it known that I, HoRA'rio ALLEN, ofthe city and county of New York, have invented a new and useful machine called, A Machine for Inserting Stop-Cocks, of which the following is a full and exact description. 1Whenever vessels containing fluids have heretofore been t pped to insert' a faucet or` cock, it has been usual to perform the following operation: To bore the hole, to Withdraw the gimlet or auger suddenly, and immediately cover t-he hole with the thumb. Then, hav` ing laid aside the tool used for boring, to take up the faucet o'r cock, and, holding it over the thumb which covers the hole, suddenly to uncover thehole. and immediately to introduce or insert the faucet 'or cock. These operations, heretofore performed separately and by hand, I have-contrived a machine to perform in which a combined movement of its parts insures the accuracy, the rapidity' of change, rise of stopper and force with which the stop-l per is kept down, that are necessaryin tapping water-pi pes containin g water under great pressure. This combination consists, essentially, in connecting with acommon shafttwo levers, one of which forces down or raises thev drill, the other of which carries forward or removes the stopper which is to cover the hole, the parts being so proportioned that as the drill leaves the hole the stopper is forced over it, while suitable side openings keep the .stopper down.

Figure l is a side view, and Fig. 2 a front Vview, of the combination.

A is the sl1aft,supported bya suitable frame in a horizontal position, six to ten inches abovel the surface of the pipe. To this shaft is attached the horizontal lever B, the forked endof which receives the coupling b, which incloses and carries the drill D, but in which the drill is free to turn. j

D is the drill, having a cutter and reamer at the lower end, and to the upper end of which the handle to turn'it is attached. G G are the guides through which thedrill passes. These guides are formed of two pieces, one of which is attached to the frame, and the other is connected to the first by a hinge. A suitable cavity, half out of eachpiece, receives the-drill:`

and guides it. A L is a, lever attached to the same shaft A.

At the end H is fastenedon a joint one end. of.

a female screw, into which enters the male screw I. The lower end of the male screw rests on the frame. By running the screw out the end H will be raised, and consequently the end of the leverBwill be depressed, and the drill thusv madetoperform its oiice. Thus4 far it is a mere' drilling; apparatus. Now to the same shaft A is also attached :a lever,. C, which extends downward toward the surface of the pipe. At 'thex end of this lever is attached alink, a. VE 1s the stopper by which the hole drilled is to be covered; The underl side of this stopper iscovered with an elastic This stopper is connected with,`

substance.' the end of, the lever G by the link a. Whatever movementtherefore, the end ofthe lever C has the stopper E has the Vsame movement. To keep this stopper down when over the hole, two side springs, F F', (one on each side of the frame,) are fastened to the frame. To the end of each spring, whichis free to move,

and which is opposite the drill, is attached a link, m, and to the lower ends of these links 'm m is attached the stopper A set-screw, c, on each side gives any required tensionto the springs.

The lower end of the drill is formed, as.

Vshown in the enlarged drawings, Fig. 4. 'nis the cutter. From r to s is the reamer, being Vof a conical shape to form thehole suitably for the reception of the stop-cock. The cuts on the conical surface are sufficiently deep to allow the water partially to escape, and thereby free the hole of itslborings, but not suiiiciently large to allow an escape of water that will inconveniencethe operator.

Fig. 3: K is the shaft which carries thestopcock L. The lower part of the shaft isformed to receive the stop-cock, and by a projecting point, p, which enters a center punch-cavity on the top of the shank of the stoprock, and a set-screw, d, the cock is fastened in a position which places the axis of the shank on the same line with the axis ofthe shaft above.

The mode of using this .machine is as fol-4 lows: The drill, being in' theguides, is turned bythe handle M, and is forced. down by'running out the screw I. The hole being drilled and' reamed, thescrew I' is turned up out of the way. The end H is then suddenly depressed, and assnddenly the end of the lever; carrying the drill is raised, and with .it the drill is raised. At the same time the end of and the stopper brought toward it by one 1no tion, the drill will just keep out of the way of the stopper. The drill being taken out of the hole drilled, and the hole being covered by the stopper, thedrill can be removed out of the guides by opening them. The shaft in which the stop-ooek has been secured, as above described, must then be substituted in the guides for the drill, which being done, the low er part of the shank of the stop-cool: will be in the .place previously occupied bythe drill. This change being made, the end H must be raised, and all the movements j ust described will be reversedviz.,the end of the lever E will recede from thehole', and thereby the stopper will, be removed. Atv the same time the end of the leverlB will be depressed, and thereby the lower end of the shank of the stop-cock will be forced int-o the hole. In

practice the interval of time' required for these changes is so short thatl a flask of Wat-er is all that escapes.

What I claim is'r The combination of the lever H B, which operates the drill-stock D or stop-cock shaft K, with the lever C and stopper E, as herein described, whereby the removal of the drill and the rapid and secure covering of the hole is effected by one operation, and in a similar manner, by a single reverse movement, the hole is uncovered and the cork inserted.

C. E. DETMOLD, ANDW. H. GREEN. 

